User Manual - Page 484

For 2019 Wrangler.

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482 SERVICING AND MAINTENANCE
When additional engine coolant (antifreeze) is needed to
maintain the proper level, only OAT coolant that meets the
requirements of FCA Material Standard MS.90032 should be
added to the coolant bottle. Do not overfill.
Engine Coolant Level — 2.0L
With the engine OFF and cold, the level of the engine coolant
should be within the OK range between the ADD and FULL
range on the dipstick.
1. Remove the cap with level dipstick from the engine
coolan
t bottle.
2. C
lean off the coolant from the dipstick.
3
. Rest
the cap on the opening of the coolant bottle without
tighten
ing the cap.
4. Remove the cap with dipstick and check the coolant level
on the
dipstick.
The radiator normally remains completely full, so there is no
need to
remove the radiator/coolant pressure cap unless
checking for engine coolant (antifreeze) freeze point or
replacing coolant. Advise your service attendant of this. As
long as the engine operating temperature is satisfactory, the
coolant bottle need only be checked once a month.
When additional engine coolant (antifreeze) is needed to
maintai
n the proper level, only OAT coolant that meets the
requirements of FCA Material Standard MS.90032 should be
added to the coolant bottle. Do not overfill.
WARNING!
Do not open hot engine cooling system. Never add
engine
coolant (antifreeze) when the engine is over-
heated. Do not loosen or remove the cap to cool an over-
heated engine. Heat causes pressure to build up in the
c
ooling sys
tem. To prevent scalding or injury, do not
remove the pressure cap while the system is hot or
under pressure.
Do not use a pressure cap other than the one specified
for your
vehicle. Personal injury or engine damage may
result.
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